Welcome to the fifteenth and final edition of Serendipity. This is a 'best of' collection, and in it you'll find stories from, among others, Patrick Samphire, Aliya Whiteley, Lavie Tidhar, Hal Duncan, E Nesbit and The Brothers Grimm. If you enjoy these, please look back over the previous issues, as there's plenty more great stories to be found. We only have space for twelve here.